河南卢氏盆地黄村断裂土壤氡气测量及断裂活动性分析

欧璐 秦大军 李宝学 胡新峰 贺鹏飞 马留锁

欧璐, 秦大军, 李宝学, 胡新峰, 贺鹏飞, 马留锁. 2014: 河南卢氏盆地黄村断裂土壤氡气测量及断裂活动性分析. 工程地质学报, 22(3): 522-530. doi: 10.13544/j.cnki.jeg.2014.03.023
引用本文: 欧璐, 秦大军, 李宝学, 胡新峰, 贺鹏飞, 马留锁. 2014: 河南卢氏盆地黄村断裂土壤氡气测量及断裂活动性分析. 工程地质学报, 22(3): 522-530. doi: 10.13544/j.cnki.jeg.2014.03.023
OU Lu, QIN Dajun, LI Baoxue, HU Xinfeng, HE Pengfei, MA Liusuo. 2014: SOIL RADON AND FAULT ACTIVITY ANALYSIS OF THE HUANGCUN FAULT IN THE OUTHWESTERN LUSHI BASIN HENAN PROVINCE. JOURNAL OF ENGINEERING GEOLOGY, 22(3): 522-530. doi: 10.13544/j.cnki.jeg.2014.03.023
Citation: OU Lu, QIN Dajun, LI Baoxue, HU Xinfeng, HE Pengfei, MA Liusuo. 2014: SOIL RADON AND FAULT ACTIVITY ANALYSIS OF THE HUANGCUN FAULT IN THE OUTHWESTERN LUSHI BASIN HENAN PROVINCE. JOURNAL OF ENGINEERING GEOLOGY, 22(3): 522-530. doi: 10.13544/j.cnki.jeg.2014.03.023

河南卢氏盆地黄村断裂土壤氡气测量及断裂活动性分析

doi: 10.13544/j.cnki.jeg.2014.03.023
基金项目: 

自然科学基金面上项目(40572148)资助

详细信息
    作者简介:

    欧璐,女,硕士,主要从事水文地质同位素方向研究.Email:oulu777@126.com

  • 中图分类号: P642

SOIL RADON AND FAULT ACTIVITY ANALYSIS OF THE HUANGCUN FAULT IN THE OUTHWESTERN LUSHI BASIN HENAN PROVINCE

  • 摘要: 本文是为了确定在卢氏盆地内被第四系覆盖的黄村断裂的位置、断裂性质,分析黄村断裂与其北侧的乔家窑地热异常的关系。断裂构造是深部氡气汇集和迁移的主要通道,氡气沿断裂向上迁移,在地表浅部形成氡异常。土壤氡气异常可揭示隐伏断裂构造的位置、产状和活动性。黄村断裂通过卢氏乔家窑一带,为第四系沉积物所覆盖。沿垂直断裂走向方向布置4条测线。应用瞬时土壤测氡仪进行了野外现场测量,测试了土壤氡气浓度,确定土壤氡气异常,分析黄村断裂位置、产状和活动性。结果表明:黄村断裂带上方土壤氡气具有异常显示,异常位置与断层位置具有较好的一致性。沿QJ12测线,从南向北,土壤氡气异常形态为低-高-较高-较低-低的峰值形态。在断层带上方氡气峰值异常高于背景值的1.5倍以上,异常峰多数为2个测点以上组成。土壤氡气变化特征表明黄村断裂具有较强的活动性。利用土壤氡气异常分析了黄村断裂深部结构特征,给出了主断裂面与次级断裂面产状和位置。结合土壤氡气异常,分析了乔家地热形成机理。初步研究结果表明,豫西基底构造具有多期活动性,活化区域内的压扭性断裂,可转变为局部张性断裂,控制水热、成矿物质的迁移和富集。
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  • 收稿日期:  2014-02-21
  • 修回日期:  2014-05-05
  • 刊出日期:  2014-06-25

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